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How wide are superduty axles?

There isn’t a single fixed width for Super Duty axles; width depends on the model year, cab/bed configuration, and whether the truck uses single or dual rear wheels. In practice, the front track is typically around the mid-60s inches, and the rear track for single-rear-wheel models is in a similar range, while dual rear wheels make the rear substantially wider.


What counts as axle width?


Axle width, commonly referred to as track width, is the distance between the centerlines of the left and right wheels on the same axle. It affects stance, turning clearance, and tire/wheel fitment. On Super Duty trucks, front and rear track widths can differ slightly depending on generation and configuration (SRW vs DRW).


Front vs. rear axles


The front axle on most Super Duty trucks is a solid axle design, with a track width that typically stays within a similar range across generations. The rear axle for SRW (single rear wheel) trucks generally stays close to the front in width, but DRW (dual rear wheels) setups widen the rear significantly to accommodate the dual tires.


Typical widths by configuration


The ranges below reflect common values observed across modern Ford F-Series Super Duty generations. Exact figures can vary by year and option package; check the VIN build sheet or official specifications for your exact truck.



  • Front axle track width: 66.0 in to 68.0 in (1676 mm to 1727 mm).

  • Rear axle track width (SRW): 66.5 in to 70.0 in (1690 mm to 1780 mm).

  • Rear axle track width (DRW): approximately 78.0 in to 84.0 in (1981 mm to 2134 mm).


These ranges illustrate how configuration affects width. Always verify the exact numbers for a specific truck model and year, especially if you’re planning wheel or tire changes.


How to measure your axle width


To determine your exact track width, measure from the centerline of the left wheel to the centerline of the right wheel on the same axle. For DRW, measure between the outermost wheel centers. Do this with the vehicle on a level surface and the weight on all four corners for accuracy.



  1. Park on a level surface and apply the parking brake; chock the wheels.

  2. Measure the distance between the wheel centerlines across the axle, using a straight line at axle height.

  3. For the front axle, measure between the centers of the front tires; for the rear SRW axle, measure between the rear tire centers; for DRW, measure between the outermost rear wheel centers.

  4. Record the measurement in inches (and convert to millimeters if needed).


Measuring directly from the vehicle provides the most reliable figure for wheel and tire compatibility, especially when planning aftermarket changes.


Where to verify exact specs


Exact axle widths can vary by production year, trim level, and any factory or dealer-installed options. To confirm your truck’s precise track width, consult:



  • Ford’s VIN-specific build sheets or window sticker

  • Owner’s manual or dealer service literature

  • Official Ford parts or service databases using the VIN


Summary


In short, there isn’t a universal axle width for Super Duty trucks. Front track widths are typically in the mid-60s inches, SRW rear track widths are in a similar range, and DRW rear track widths are noticeably wider due to dual rear wheels. For any exact specification, check the VIN, year, and configuration in official Ford documentation or measure directly on the vehicle.

What size is the rear axle on a 2025 f250?


LHD 4WD (Part Time Drive). With 10.50" Axle Size. Drive Shaft - Rear Axle Drive.



How do I know if my F350 has a wide track axle?


F-350s from model years 2011-2016 equipped with the Wide Track axle are generally distinguishable by having large front fender flares, similar to what comes standard on the F-450. The RPO code of 535 also designates the tow package which includes the Wide Track axle on the F-350.



How wide is a Dana 80 axle?


The base price is a brand new Dana 80 Axle Housing with 4" x 1/2" (. 500) Wall Tubing. We have standard widths for total wheel mount to wheel mount width. 65", 67", 69" (STD GM 1 Ton Width) and 72" widths.



Is a Dana 60 wider than a Dana 44?


Although the Dana 44 and Dana 60 differential covers look similar, their sizes are significantly different. The Dana 44 differential cover will measure about 9 1/2 inches wide and 10 1/2 inches tall, while the Dana 60 differential cover will measure about 11 1/4 inches wide and 12 inches tall.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.